5dimes, a major offshore sportsbook, now lists the Cavs at +350 to win the 2015 Championship. Here are their 10 favorites, in order (via vegasinsider.com):

Cleveland +350

San Antonio +500

Oklahoma City +650

Chicago +1000

Los Angeles Clippers +1000

Houston +1500

Pacers +1900

Heat +2000

Golden State +2000

Washington +4000

According to Bovada, another big betting site, the Cavs are 4/1 favorites to win it all, ahead of San Antonio at 5/1 and Oklahoma City at 6/1. At the start of the off-season, Cleveland was a 60/1 longshot to win it all, but as rumors of James's return intensified, the odds fell steadily to 10/1, where they stayed until James finally made his decision.

Here's a screen-grab from Bovada. Note that the Miami Heat have fallen all the way to 50/1.